Unlock instant, AI-driven research and patent intelligence for your innovation.

Distance measuring method and distance measuring device

A distance measurement and distance technology, applied in the field of sensors, can solve problems such as low measurement accuracy and wrong distance, and achieve the effect of improving universality

Pending Publication Date: 2021-06-18
HUAWEI TECH CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the existing radar signal ranging method of different frequency bands is used for target ranging, since the radar signal is easily affected by obstacles in the surrounding environment, the distance of the wrong target is detected, so the measurement accuracy is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Distance measuring method and distance measuring device
  • Distance measuring method and distance measuring device
  • Distance measuring method and distance measuring device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0091] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0092] figure 1 Shows a schematic block diagram of the distance measuring device 100 provided by the embodiment of the present application, as figure 1 As shown, the device 100 includes a radar module 110 , a signal processing module 120 and an output module 130 .

[0093] The radar module 110 is used to periodically transmit radar signals. The radar signals adopt frequency modulation continuous wave (FMCW) modulation, receive the echo signals generated by the radar signals within the detection range, and send the received echo signals to the signal processing module. 120.

[0094] It should be noted that the foregoing radar signal may be a millimeter wave, a microwave or an ultrasonic wave, which is not limited in this embodiment of the present application.

[0095] Optionally, the radar module ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a distance measuring method and device. The method and the device can improve the accuracy of distance measurement. The method comprises the following steps: receiving a plurality of first echo signals generated by a plurality of first radar signals emitted in a first time period in a detection range; determining a first point cloud data set according to the plurality of first echo signals; according to a signal-to-noise ratio value and a rate value in each piece of first point cloud data included in the first point cloud data set, denoising the first point cloud data set to obtain a target data set, wherein noise and rates at barrier points with different motion states are different; according to the distance value in each piece of first point cloud data included in the target data set, clustering the first point cloud data included in the target data set to obtain at least one classification, wherein the at least one classification corresponds to at least one obstacle; and according to the distance value in each piece of first point cloud data included in each of the at least one classification, determining the distance from an obstacle corresponding to each classification to the launching origin.

Description

technical field [0001] The present application relates to the field of sensor technology, and more particularly, to a distance measurement method and a distance measurement device in the field of sensor technology. Background technique [0002] With the development of society and the advancement of science and technology, the application of sensor technology in distance measurement is becoming more and more extensive. For example, a height measuring device is a distance measuring device capable of measuring people's height. The height measured by the user through the height measuring device is combined with physiological parameters such as weight and body fat to comprehensively evaluate the health of the body. [0003] The existing millimeter-wave frequency bands of 60GHz and 77GHz have a large available bandwidth, and the frequency modulated continuous wave (FMCW) modulation method can achieve centimeter-level ranging accuracy and speed measurement. Currently, it is widely ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01S13/32G01S13/88G01G19/50A61B5/107
CPCG01S13/32G01S13/88G01G19/50A61B5/1072A61B5/0507H04B17/318G01S7/354G01S13/34
Inventor 丁根明贺亚农
Owner HUAWEI TECH CO LTD